{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2fe461ff0c8a230d63a79b07436ad17b73a7a8ba114641e911ab632771ff9436",
    "signature": "0x06bc6ab4aa598ba7810f4778f0ce1a58a23b1682e52450a035d1f5f43c17e13715375300300e80fe0446fa0ec1ab33c318a32b2464e0108ea0730475a17a222c1c",
    "signer": "0xa0494b4308Da583a62D334A85266C222B203089D",
    "userId": "394096344"
  }
}